Mail Server : Postfix + Clamav + Amavisd2024/04/17 |
Configure Virus-Scanning for EMails with Postfix + Clamav.
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[1] | |
[2] | Install Amavisd and Clamav Server. |
root@mail:~ #
pkg install -y amavisd-new p5-Digest-SHA1 p5-IO-Stringy
root@mail:~ #
vi /usr/local/etc/clamd.conf # line 81 : uncomment TemporaryDirectory /var/tmp service clamav-clamd enable clamav_clamd enabled in /etc/rc.conf root@mail:~ # service clamav-clamd start Starting clamav_clamd. |
[3] | Configure Amavisd. |
root@mail:~ #
vi /usr/local/etc/amavisd.conf # line 13, 14 : uncomment and add the line if not use spam check @bypass_spam_checks_maps = (1); # controls running of anti-spam code $undecipherable_subject_tag = undef; # line 23 : change to your domain name $mydomain = 'srv.world'; # line 156 : uncomment and change to your hostname $myhostname = 'mail.srv.world'; # line 158, 159 : uncomment $notify_method = 'smtp:[127.0.0.1]:10025'; $forward_method = 'smtp:[127.0.0.1]:10025'; # set to undef with milter! # line 387 - 390 : uncomment ['ClamAV-clamd', \&ask_daemon, ["CONTSCAN {}\n", "/var/run/clamav/clamd.sock"], qr/\bOK$/m, qr/\bFOUND$/m, qr/^.*?: (?!Infected Archive)(.*) FOUND$/m ], # line 756 - 759 : comment out # ### http://www.clamav.net/ - backs up clamd or Mail::ClamAV # ['ClamAV-clamscan', 'clamscan', # "--stdout --no-summary -r --tempdir=$TEMPBASE {}", # [0], qr/:.*\sFOUND$/m, qr/^.*?: (?!Infected Archive)(.*) FOUND$/m ],root@mail:~ # service amavisd enable amavisd enabled in /etc/rc.conf root@mail:~ # service amavisd start Starting amavisd. |
[4] | Configure Postfix. |
root@mail:~ #
vi /usr/local/etc/postfix/main.cf # add follows to last line content_filter=smtp-amavis:[127.0.0.1]:10024
root@mail:~ #
vi /usr/local/etc/postfix/master.cf # add follows to last line smtp-amavis unix - - n - 2 smtp -o smtp_data_done_timeout=1200 -o smtp_send_xforward_command=yes -o smtp_dns_support_level=disabled 127.0.0.1:10025 inet n - n - - smtpd -o content_filter= -o local_recipient_maps= -o relay_recipient_maps= -o smtpd_restriction_classes= -o smtpd_client_restrictions= -o smtpd_helo_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o mynetworks=127.0.0.0/8 -o strict_rfc821_envelopes=yes -o smtpd_error_sleep_time=0 -o smtpd_soft_error_limit=1001 -o smtpd_hard_error_limit=1000 service postfix reload |
[5] | That' OK. [X-Virus-Scanned: ***] lines are added in the header section of emails after this configuration and emails with known Virus will not sent to Clients. |
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